Large Particle Detection  

5, 10, 20, 30, 50, 100μm

Selectable Sampling Flow Rates  

28.3L/min high-flow sampling

High-Precision Intelligent Detection  

 High‑precision sensor, flow monitoring & self-adjustment

Compliant & Portable  

Stainless steel, large-capacity Li-ion battery, AC/DC, long runtime

Smart Touchscreen & Data Management  

IPS touchscreen (glove‑operable), local storage, external sensors

1、High sampling flow rate of 28.3L/min, improving sampling precision and efficiency.

2、7-inch high-definition large screen with higher resolution and faster response, allowing users to intuitively read cleanliness data.

3、User-friendly human-computer interaction with simple and direct operation, reducing user learning costs and improving user experience.

4、Full 304 stainless steel body, meeting GMP specification requirements while maintaining aesthetics.

5、Large-capacity data storage of 20,000 groups, supporting one-click PDF file export via USB flash drive for data download anytime and anywhere.

6、Supports preset functions for 400 room points, enabling one-click selection and quick sampling.

7、Supports 20-user management, password complexity management, and multi-level authority management.

8、Supports audit trail and log management, which can be queried, traced, and controlled, complying with FDA 21CFR PART11 specifications.

9、Supports custom switching between 6 channels/2 channels (0.5μm, 5.0μm).

10、Supports calibration reminder function to prompt users for timely metering and ensure normal use of the instrument.

11、10-year long service life imported semiconductor laser diode (calibration required annually).

12、On-screen data alarm, equipped with a flow sensor for real-time monitoring and automatic flow adjustment, ensuring flow stability and counting accuracy.

13、Large-capacity high-quality lithium battery for longer battery life, supporting both AC and DC power supply.

14、Expandable analog input hardware interfaces, allowing for external connections to temperature and humidity sensors, airspeed sensors, pressure differential sensors, etc. (optional)

Model：KQ-4128A

Particle Size Channels：5μm, 10μm, 20μm, 30μm, 50μm, 100μm

Sampling Flow Rate：28.3L/min±5%

Repeatability Error：±5%FS

Self-Purification Time：≤5min

Sampling Cycle：1~9999s (adjustable)

Sampling Delay：0~999s (adjustable)

Sampling Times：1~999 times (adjustable)

Sampling Points：1~50 points (adjustable)

Preset Points：400 room points preset, one-click selection for quick sampling

Laser Source：10-year long service life imported semiconductor laser diode

Vacuum Requirement：Built-in vacuum source, 3-year service life

Screen Display：7-inch IPS touch color screen

Printing Method：Built-in thermal printing

Battery Life：≥10 hours

Data Storage：20,000 entries

Data Export：USB flash drive export, export format PDF

Data Security：20-user management, password complexity management, multi-level authority management

Audit Trail：Queryable, traceable, controllable, complying with FDA 21CFR PART11 specifications

Temperature and Humidity Detection：0~50℃, 0~100%RH (optional function)

Charging Power Supply：AC220V/50Hz

Built-in Lithium Battery：DC24V/15AH

Power：Input AC100-240V/50HZ, Output DC25.2V/5A

Enclosure：304 stainless steel

Dimensions (mm)：Width 244 * Depth 208 * Height 250

Weight (including battery)：6.5Kg

Operating Environment：Temperature 0~40°C, Humidity 10%~90% (no condensation)

Storage Environment：Temperature -10~50°C, Humidity 0~90% (no condensation)